Richard Branson's Virgin Group has invested in Hyperloop One
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Virgin Hyperloop One

The details of his proposal might have been unconvincing to many experts - one transportation engineer noted that, among other things, Musk radically underestimated the cost of concrete viaducts, the unpleasantness of high-speed tight corners and the difficulty of safely stopping in an emergency - but the proposal spawned a number of companies eager to work on versions of the idea.

"The total 'DevLoop" tube length is 500 metres and the tube's diameter is 3.3 metres.

Richard Branson is jumping on the Hyperloop train, the transport concept which could reduce the time it takes to travel between London and Edinburgh to just 50 minutes. The company still needs to demonstrate that the system could transport people on tracks long enough to connect cities.

The 1.8 mile (3 km) full-scale and full speed enclosed prototype is taking shape in the desert in North Las Vegas in Nevada.

Heated confrontation between Florida doctor and patient
Gallogly says he went to the waiting room because Stipe demanded to see him, which is when the argument on tape happened. She says she waited for more than an hour there, then decided she was too weak to stay and wanted to go home.

Spanish Eurofighter Crashes Following Military Parade
Thursday's parade saw the participation of 3,900 military personal, along with 78 different aircraft, including four Eurofighters. The cause of the crash was unclear and the Ministry of Defense has launched an investigation, the air force added.

Zverev brutalises racquet in loss to Del Potro
Earlier on Thursday, Grigor Dimitrov booked his place in the quarter-finals, downing Sam Querrey 6-3 7-6 (7-3). I'm a bit pissed off about that, because I feel like I played well and I feel like that's the upsetting part.